ClassID:

205025

H01J29/484 - CPC Classification

Classification description:

Details of cathode-ray tubes or of electron-beam tubes of the types covered by group; Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement; Electron guns Eliminating deleterious effects due to thermal effects, electrical or magnetic fields; Preventing unwanted emission

Recent Application in this class: